Answer:
to be honest I'm not sure
The first shell has 2 in and the second shell has 8 in therefore ypuvwont need to add anymore :-) so the answer is 0
T<span>he
pfsense firewall, like other firewalls on the market, relies on the subnet mask to expose an ip address from the private network and bind it
to an address on the public network.
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I'll take the gravitational constant G to be 6.67x10^-11 in this. I will also be using the mass of the earth as 5.972x10^24 (there might be a way to solve this without knowing the mass of the Earth but it has escaped me, if anyone wants to help me out on this then feel free).
We can calculate the gravity of the earth at the distance above it using
g=mG/r^2
Substituting in, we get
g=(5.972x10^24)x(6.67x10^-11)/(6380000+8960000)^2
=1.69 to 3sf
We also know that w=mg, so the weight of the astronaut is w=76x1.69=128.44N = 128N to 3sf
Answer:
Spacecraft's speed relative to Earth is 0.14c .
Explanation:
Let v be the speed of the spacecraft with respect to Earth's frame. According to special theory of relativity, there is time dilation i.e. given by the relation :
t = t₀γ
Here t is time measured in moving frame, t₀ is time measured in rest frame and γ is constant.
We know that γ =
Here c is the speed of light.
So, t = .......(1)
According to the problem, the time measure in Earth's frame is :
t₀ = 1 hr = 60 min =60 x 60 s = 3600 s
The time measured in the space craft frame is :
t = 3601 s
Substitute t and t₀ in equation (1) :
3601 =
v = 0.14 c